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<title>DataScientst Portfolio</title>
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</style>

<div class="page">

  <div class="header">
    <div class="header-eyebrow">Machine Learning Portfolio</div>
    <h1>Data Science Expertise<br>Across 30 Projects</h1>
    <p class="header-desc">From regression to deep learning, NLP to computer vision -- trained models on real Kaggle datasets across 10 categories, served through a live Streamlit interface.</p>
  </div>

  <div class="stats-row">
    <div class="stat-cell"><div class="stat-num">30</div><div class="stat-label">Projects</div></div>
    <div class="stat-cell"><div class="stat-num">10</div><div class="stat-label">Categories</div></div>
    <div class="stat-cell"><div class="stat-num">34</div><div class="stat-label">Trained Models</div></div>
    <div class="stat-cell"><div class="stat-num">15+</div><div class="stat-label">Kaggle Datasets</div></div>
    <div class="stat-cell"><div class="stat-num">1</div><div class="stat-label">Streamlit App</div></div>
  </div>

  <!-- REGRESSION -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-reg)"></div>
      <span class="category-name">Regression</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">Gold Price Prediction</div>
        <div class="card-desc">Predicts gold ounce price using S&P 500, crude oil, silver, and EUR/USD indices.</div>
        <div class="card-footer">
          <span class="tag">RandomForest</span>
          <span class="tag">Kaggle</span>
          <span class="metric-pill">R2 0.990</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Student Exam Score Prediction</div>
        <div class="card-desc">Forecasts math scores from demographic and educational preparation factors.</div>
        <div class="card-footer">
          <span class="tag">RandomForest</span>
          <span class="tag">OneHot</span>
          <span class="metric-pill">R2 0.849</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Uber/Taxi Fare Prediction</div>
        <div class="card-desc">Estimates trip cost from pickup-dropoff coordinates and passenger count.</div>
        <div class="card-footer">
          <span class="tag">RandomForest</span>
          <span class="tag">50K rows</span>
          <span class="metric-pill">R2 0.778</span>
        </div>
      </div>
    </div>
  </div>

  <!-- CLASSIFICATION -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-clf)"></div>
      <span class="category-name">Classification</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">Mobile Device Price Segment</div>
        <div class="card-desc">Classifies phones into price tiers (0-3) based on hardware specifications.</div>
        <div class="card-footer">
          <span class="tag">RandomForest</span>
          <span class="metric-pill">Acc 81.2%</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Wine Quality Classification</div>
        <div class="card-desc">Predicts red wine quality score from chemical measurements.</div>
        <div class="card-footer">
          <span class="tag">RandomForest</span>
          <span class="tag">Balanced</span>
          <span class="metric-pill">Acc 67.5%</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Customer Churn Prediction</div>
        <div class="card-desc">Predicts telecom customer attrition risk from usage patterns.</div>
        <div class="card-footer">
          <span class="tag">RandomForest</span>
          <span class="tag">OneHot</span>
          <span class="metric-pill">Acc 78.9%</span>
        </div>
      </div>
    </div>
  </div>

  <!-- CLUSTERING -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-clu)"></div>
      <span class="category-name">Clustering</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">NBA Player Performance Clustering</div>
        <div class="card-desc">Groups players into play-style clusters based on per-game stats, with 3D visualization.</div>
        <div class="card-footer">
          <span class="tag">KMeans</span>
          <span class="tag">3D Viz</span>
          <span class="metric-pill">Sil 0.452</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Credit Card Customer Segmentation</div>
        <div class="card-desc">Builds financial profiles from spending limits and balance behaviors.</div>
        <div class="card-footer">
          <span class="tag">KMeans</span>
          <span class="tag">Scaler</span>
          <span class="metric-pill">Sil 0.531</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Spotify Song Style Clustering</div>
        <div class="card-desc">Groups songs by audio features like danceability, energy, and loudness.</div>
        <div class="card-footer">
          <span class="tag">KMeans</span>
          <span class="tag">Spotify</span>
          <span class="metric-pill">Sil 0.327</span>
        </div>
      </div>
    </div>
  </div>

  <!-- COMPUTER VISION -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-cv)"></div>
      <span class="category-name">Computer Vision</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">Driver Drowsiness Detection</div>
        <div class="card-desc">Detects driver fatigue by analyzing Eye Aspect Ratio (EAR) from facial landmarks.</div>
        <div class="card-footer">
          <span class="tag">MediaPipe</span>
          <span class="tag">EAR</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Face Mask Detection</div>
        <div class="card-desc">Scans uploaded photos to classify faces as masked or unmasked.</div>
        <div class="card-footer">
          <span class="tag">RandomForest</span>
          <span class="tag">64x64px</span>
          <span class="metric-pill">Acc 82.5%</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Hand Gesture &amp; Finger Counting</div>
        <div class="card-desc">Extracts hand landmarks via MediaPipe to count open fingers in real time.</div>
        <div class="card-footer">
          <span class="tag">MediaPipe</span>
          <span class="tag">Realtime</span>
        </div>
      </div>
    </div>
  </div>

  <!-- NLP -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-nlp)"></div>
      <span class="category-name">Natural Language Processing</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">SMS Spam Detection</div>
        <div class="card-desc">Analyzes incoming text messages with TF-IDF to detect phishing and spam attempts.</div>
        <div class="card-footer">
          <span class="tag">NaiveBayes</span>
          <span class="tag">TF-IDF</span>
          <span class="metric-pill">Acc 98.0%</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">IMDb Sentiment Analysis</div>
        <div class="card-desc">Classifies the sentiment behind movie reviews as positive or negative.</div>
        <div class="card-footer">
          <span class="tag">LogReg</span>
          <span class="tag">TF-IDF</span>
          <span class="metric-pill">Acc 87.3%</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Fake News Detection</div>
        <div class="card-desc">Analyzes news articles for authenticity and manipulation risk.</div>
        <div class="card-footer">
          <span class="tag">LogReg</span>
          <span class="tag">TF-IDF</span>
          <span class="metric-pill">Acc 97.6%</span>
        </div>
      </div>
    </div>
  </div>

  <!-- RECOMMENDATION -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-rec)"></div>
      <span class="category-name">Recommendation Systems</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">Movie Recommendation System</div>
        <div class="card-desc">Recommends films based on genre and plot synopsis similarity (Cosine Similarity).</div>
        <div class="card-footer">
          <span class="tag">TF-IDF</span>
          <span class="tag">Cosine Sim</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Book Recommendation Engine</div>
        <div class="card-desc">Suggests reading lists based on author and content overlap.</div>
        <div class="card-footer">
          <span class="tag">TF-IDF</span>
          <span class="tag">Goodreads</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Music Recommendation System</div>
        <div class="card-desc">Builds song queues from Spotify rhythm and genre similarity features.</div>
        <div class="card-footer">
          <span class="tag">TF-IDF</span>
          <span class="tag">Spotify</span>
        </div>
      </div>
    </div>
  </div>

  <!-- TIME SERIES -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-ts)"></div>
      <span class="category-name">Time Series</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">Stock Price Prediction</div>
        <div class="card-desc">Forecasts AAPL stock trends from historical closing prices.</div>
        <div class="card-footer">
          <span class="tag">LinearReg</span>
          <span class="tag">yfinance</span>
          <span class="metric-pill">R2 0.975</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Weather Temperature Prediction</div>
        <div class="card-desc">Predicts upcoming daily average temperatures from historical climate data.</div>
        <div class="card-footer">
          <span class="tag">LinearReg</span>
          <span class="tag">Lag-1</span>
          <span class="metric-pill">R2 0.912</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Store Sales Prediction</div>
        <div class="card-desc">Analyzes Walmart weekly sales data to forecast future revenue.</div>
        <div class="card-footer">
          <span class="tag">LinearReg</span>
          <span class="tag">Synthetic</span>
          <span class="metric-pill">R2 0.767</span>
        </div>
      </div>
    </div>
  </div>

  <!-- DATA VIZ -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-viz)"></div>
      <span class="category-name">Data Visualization</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">Global Social Media Statistics</div>
        <div class="card-desc">Visualizes platform-level daily usage times and age-group sentiment distributions.</div>
        <div class="card-footer">
          <span class="tag">Plotly</span>
          <span class="tag">Dashboard</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Climate Change &amp; CO2 Emissions</div>
        <div class="card-desc">Interactive comparison of country-level fossil fuel CO2 emission trends.</div>
        <div class="card-footer">
          <span class="tag">Plotly</span>
          <span class="tag">Interactive</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">E-Commerce Sales Dashboard</div>
        <div class="card-desc">Charts total revenue, country distributions, and top-selling products.</div>
        <div class="card-footer">
          <span class="tag">Plotly</span>
          <span class="tag">Dashboard</span>
        </div>
      </div>
    </div>
  </div>

  <!-- DEEP LEARNING -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-dl)"></div>
      <span class="category-name">Deep Learning</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">Pneumonia Detection from X-Ray</div>
        <div class="card-desc">CNN model that scans chest X-ray images to diagnose pneumonia.</div>
        <div class="card-footer">
          <span class="tag">CNN</span>
          <span class="tag">Keras</span>
          <span class="metric-pill">Val 92.5%</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Facial Emotion Recognition</div>
        <div class="card-desc">CNN model predicting dominant emotion from human facial expressions.</div>
        <div class="card-footer">
          <span class="tag">CNN</span>
          <span class="tag">FER2013</span>
          <span class="metric-pill">Val 65.4%</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Text Generation Bot</div>
        <div class="card-desc">Generates text using word-level Markov chain probability transitions.</div>
        <div class="card-footer">
          <span class="tag">Markov</span>
          <span class="tag">Shakespeare</span>
        </div>
      </div>
    </div>
  </div>

  <!-- AI AGENTS -->
  <div class="category-section">
    <div class="category-header">
      <div class="category-dot" style="background:var(--cat-ai)"></div>
      <span class="category-name">AI Agents</span>
      <span class="category-count">3 projects</span>
    </div>
    <div class="projects-grid">
      <div class="project-card">
        <div class="card-title">Smart Farming &amp; Irrigation Agent</div>
        <div class="card-desc">Autonomous agent making irrigation decisions based on soil moisture and evaporation risk.</div>
        <div class="card-footer">
          <span class="tag">Rule-based</span>
          <span class="tag">Decision Tree</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">FAQ Support &amp; Intent Analysis Agent</div>
        <div class="card-desc">Resolves customer message intent for autonomous department routing.</div>
        <div class="card-footer">
          <span class="tag">Intent Clf</span>
          <span class="tag">NLP</span>
        </div>
      </div>
      <div class="project-card">
        <div class="card-title">Autonomous Vehicle Simulation Agent</div>
        <div class="card-desc">Simulates lane-keeping, emergency braking, and autonomous parking from sensor data.</div>
        <div class="card-footer">
          <span class="tag">Simulation</span>
          <span class="tag">Sensor</span>
        </div>
      </div>
    </div>
  </div>

  <!-- TECH STACK -->
  <div class="tech-section">
    <div class="tech-title">Tech Stack</div>
    <div class="tech-grid">
      <span class="tech-tag">Python</span>
      <span class="tech-tag">Streamlit</span>
      <span class="tech-tag">scikit-learn</span>
      <span class="tech-tag">TensorFlow / Keras</span>
      <span class="tech-tag">OpenCV</span>
      <span class="tech-tag">MediaPipe</span>
      <span class="tech-tag">Pandas</span>
      <span class="tech-tag">NumPy</span>
      <span class="tech-tag">Plotly</span>
      <span class="tech-tag">Joblib</span>
      <span class="tech-tag">Kaggle API</span>
      <span class="tech-tag">TF-IDF</span>
      <span class="tech-tag">Hugging Face Hub</span>
    </div>
  </div>

  <!-- LINKS -->
  <div class="links-section">
    <div class="tech-title">Links</div>
    <div class="links-grid">
      <a class="link-card" href="https://github.com/oktaybobus/DataScientst" target="_blank">GitHub Repo</a>
      <a class="link-card" href="https://huggingface.co/OKTAYBBS/DataScientst-models" target="_blank">HF Models</a>
      <a class="link-card" href="https://oktaybobus-datascientst.streamlit.app" target="_blank">Live Demo</a>
    </div>
  </div>

  <div class="footer">
    <span>Ali Oktay Bobus -- Data Science Portfolio</span>
    <span>30 projects &middot; 34 models &middot; 10 categories</span>
  </div>

</div>